HOWTO: Mark a Device Configured Through VendorInstaller DLL

• Microsoft Win32 Device Driver Kit (DDK) Windows 95

SUMMARY

The registry key for the device being called is passed to the VendorInstaller code on its command line. A VendorInstaller should mark the devnode key as configured. The sample code below describes how to mark the devnode configured.

MORE INFORMATION

Sample Code

   extern "C" VOID PASCAL  ScheduleInstallation(HWND hwndParent,
                               HINSTANCE hDllInst,
                               LPSTR lpstrCmdLine, int nCmdShow)
   {
       HKEY                  hkPlugNPlay;
       DWORD                 dw0 = 0;

       /*
       We now truncate lpstrCmdLine so it holds just the registry key we
       need.
       */ 

       for   (LPSTR lpstrSource = lpstrCmdLine;
              *lpstrSource && *lpstrSource != ' ';
              lpstrSource++)
       ;
       if    (*lpstrSource)  *lpstrSource++ ='\0';

       if    (ERROR_SUCCESS != RegOpenKey(HKEY_LOCAL_MACHINE, lpstrCmdLine,
                 &hkPlugNPlay))
       {
         return;
       }

       if    (*lpstrSource) *(--lpstrSource) = ' ';  //  restore the blank

       //    We must mark as installed now, so we don't do all
       //    this once more in the event of a reboot.

       RegSetValueEx(hkPlugNPlay, "ConfigFlags", 0, REG_BINARY, (LPBYTE)
           &dw0, sizeof DWORD);
       RegCloseKey(hkPlugNPlay);

       BeginInstallation(hwndParent, hDllInst, lpstrCmdLine, nCmdShow);
       return;
   } 

Keywords          : ntddkprnt 
Version           : WINDOWS:4.0
Platform          : WINDOWS 
Issue type        : kbhowto 

Last Reviewed: March 5, 1999